When it comes to adding a night mode camera, Samsung was late to the party. The Samsung Galaxy S9 and Samsung Galaxy S10 received that addition through an update last spring, whereas the Samsung Galaxy Note 10 came with a pre-configured Night Mode camera. Night Mode replaced Bright Mode which allowed you to take long exposures in low-light conditions. It was kinda automatic and you had no control whether to turn it on or not.
And this is my biggest issue with Bright Mode. It turned on automatically based on how dark it was. In other words, the software decided which mode to use in low light, not the photographer. Night Mode is a different story.